Mouse.wheel() method

Dispatches a mousewheel event.

Signature:

wheel(options?: MouseWheelOptions): Promise<void>;

Parameters

Parameter	Type	Description
options	MouseWheelOptions	(Optional) Optional: MouseWheelOptions.

Returns:

Promise<void>

Example

An example of zooming into an element:

await page.goto(
  'https://mdn.mozillademos.org/en-US/docs/Web/API/Element/wheel_event$samples/Scaling_an_element_via_the_wheel?revision=1587366'
);

const elem = await page.$('div');
const boundingBox = await elem.boundingBox();
await page.mouse.move(
  boundingBox.x + boundingBox.width / 2,
  boundingBox.y + boundingBox.height / 2
);

await page.mouse.wheel({deltaY: -100});